mtd: nand: qcom: support for IPQ4019 QPIC NAND controller

Add the compatible string for IPQ4019 QPIC NAND controller
version 1.4.0 which uses BAM DMA.

Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>